Authorities are investigating a fuel leak from a cargo aircraft at Hong Kong airport that prompted an emergency response from police and firefighters, the South China Morning Post has learned. A source said the airport control centre alerted police to a fuel leak from a Boeing 747 cargo aircraft operating flight CV531 at around 8.32am on Thursday, later confirmed to be from the aircraft’s left wing. “The aircraft was parked outside the Cathay Pacific Cargo Terminal at that time,” a second source